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Chester Morris as Horatio 'Boston Blackie' Black |
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Janis Carter as Dorothy Anderson |
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William Wright as Paul Martens |
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Richard Lane as Inspector Farraday |
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George E. Stone as The Runt |
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Robert B. Williams as Matt Healy |
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Mark Roberts as George Daley |
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Dorothy Malone as Eileen Daley (Uncredited) |
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Joseph Crehan as Jumbo Madigan (Uncredited) |
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Ben Taggart as Traffic Cop (Uncredited) |
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Minerva Urecal as Miss Wilkinson (Uncredited) |
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Constance Purdy as Woman in Daley's Office (Uncredited) |
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Ed Allen as Policeman (Uncredited) |
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Kenneth Brown as Boy (Uncredited) |
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Early Cantrell as Margaret Dean (Uncredited) |
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Lew Davis as Exhibit Attendee (Uncredited) |
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Edythe Elliott as Mother (Uncredited) |
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Jack Gardner as Frank (Uncredited) |
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Fred Graff as Reporter (Uncredited) |
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Harrison Greene as Arthur Manleder (Uncredited) |
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Fred Howard as Reporter (Uncredited) |
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Dick Jensen as Policeman (Uncredited) |
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Henry Jordan as Reporter (Uncredited) |
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Edward Keane as Police Commissioner Howard (Uncredited) |
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Tom Kingston as News Photographer (Uncredited) |
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Lyle Latell as Detective Sergeant Matthews (Uncredited) |
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Billy Lenhart as Boy (Uncredited) |
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Anne Loos as Newsstand Clerk (Uncredited) |
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George Magrill as Police Guard (Uncredited) |
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Cy Malis as Policeman (Uncredited) |
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George McKay as Police Sergeant McNulty (Uncredited) |
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Pat O'Malley as Police Sergeant (Uncredited) |
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John Tyrrell as Austin (Uncredited) |
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Bob Walker as Man in Office with Matthews (Uncredited) |
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Cecil Weston as Mother (Uncredited) |
| Camera | L. William O'Connell | Director of Photography |
| Directing | Budd Boetticher | Director |
| Writing | Jack Boyle | Writer |
| Production | Ted Richmond | Producer |
| Editing | Al Clark | Editor |
| Writing | Paul Yawitz | Writer |
| Directing | Milton Feldman | Assistant Director |
| Sound | Paul Sawtell | Original Music Composer |
| Art | Lionel Banks | Art Direction |
| Art | Robert Priestley | Set Decoration |
| Art | George Brooks | Art Direction |
| Crew | Werner R. Heymann | Additional Music |
| Sound | Lambert E. Day | Sound |
| Crew | Earl E. Lawrence | Additional Music |
| Crew | Ben Oakland | Additional Music |
| Sound | Mischa Bakaleinikoff | Music Director |
| Crew | Gregory Stone | Additional Music |
